특별계획구역 용적률 인센티브에 의한 부동산 개발사업의 비용편익 조정효과 연구

The Effectiveness of Regulation between Cost and Benefit from FAR-incentive Zoning on Special Districts in the City of Seoul

1. CONTENTS (1) RESEARCH OBJECTIVES As the focus of this study, the "Special Districts" in Seoul, which were designated and made by public in the early 2000s, are in a close relation to the balance between public benefit and private benefit. The objective of this research is to evaluate effectiveness of incentive zoning in the special planning districts. (2) RESEARCH METHOD This research conducted cost-benefit analysis focused on the benefit-cost ratio(BCR) of private sector. (3) RESEARCH FINDINGS The result of this study is as follows. According to analysis, the monetary value assessment of these factors showed that BCR of the private sector measured in the case sites was 1.95 on average, and major costs in the private sector were cost of land and cost of construction, while benefits were sales of buildings. The ratio of incentive is 29% and the ratio of additional building area is 1,42 in detail. Therfore in a view point of total amount, the effectiveness of incentive zoning is reasonal, but internal influencing factors say that current incentive system is unbalance between private benefit and public benefit. Because private cost, for example, cost of land and cost of construction, would give back indirect benefit in the process of development under the current incentive system. 2. RESULTS The study says that the standard for the judgment on the balance between public benefit and private benefit should be a practical exchange of value, not the current exchange of area relying on a calculation equation.